the line i refer to is the one drawn by the law on this which if you read the links you will see
if you want people checked for convictions other than just asking them then the crb systemn is all there is in England and Wales. Scotland has a slightly diferent method
in fact the employer could be breaking the law in insisting these are done
see
http://www.paull-williamsons.co.uk/s...r_Employee.pdf
people seem to be expecting too much out of the system in what checks they think can be done on people looking for employment in these fields
if you are worried about them going into your house then don't let them in